Magnetron
US6717365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetron including a cylindrical anode having a resonant space formed therein and a cathode fitted therein, magnets fitted to upper and lower sides of the anode, a yoke fitted on outsides of the anode and the magnets to for a closed circuit, and cooling devices including a main cooling device to form a heat discharge path from the anode, and a supplementary cooling device to form a heat discharge path from the magnet direct or indirectly, wherein the main cooling device is an anode heat conductor having one end closely fitted to an outside surface of the anode, and the other end passed to the yoke and exposed to an external air, and the supplementary cooling device includes a magnet heat conductor closely fitted to an outside surface of the magnet, the magnet heat conductor having one side in contact with the outside case of the magnetron, or a yoke heat conductor closely fitted to an outside surface of a yoke plate, the yoke heat conductor having one side in contact with the outside case of the magnetron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.